79259643 has 18 divisors (see below), whose sum is σ = 116187812. Its totient is φ = 52065720.

The previous prime is 79259629. The next prime is 79259647. The reversal of 79259643 is 34695297.

It is a happy number.

It is not a de Polignac number, because 79259643 - 2⁵ = 79259611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79259647) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44496 + ... + 46242.

Almost surely, 2^79259643 is an apocalyptic number.

79259643 is a deficient number, since it is larger than the sum of its proper divisors (36928169).

79259643 is a wasteful number, since it uses less digits than its factorization.

79259643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895 (or 1821 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 79259643 is about 8902.7884957467. The cubic root of 79259643 is about 429.5536074191.

The spelling of 79259643 in words is "seventy-nine million, two hundred fifty-nine thousand, six hundred forty-three".